I don't know how many people will switch, but I think it's worth it for even a few of the new features. - You can get cross-compilation for free in Cython proj

I don't know how many people will switch, but I think it's worth it for even a few of the new features. - You can get cross-compilation for free in Cython projects just by switching compilers. - (nearly) Arbitrary width integer types are a godsend for the right kinds of bit twiddly projects. - The error handling is actually really nice.